package cn.zyjblogs.netty.codec;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.util.CharsetUtil;

/**
 * copyright (C), 2021, 北京同创永益科技发展有限公司
 *
 * @author zhuyijun
 * @version 1.0.0
 * <author>                <time>                  <version>                   <description>
 * zhuyijun         2021/10/13 11:18               1.0
 * @program netty_study
 * @description
 * @create 2021/10/13 11:18
 */
public class NettyClientHandler extends ChannelInboundHandlerAdapter {
    //当通道就绪就会触发该方法
    @Override
    public void channelActive(ChannelHandlerContext ctx) throws Exception {
        System.out.println("client "+ctx);
//        ctx.writeAndFlush(Unpooled.copiedBuffer("hello, server: ~o( =∩ω∩= )m喵", CharsetUtil.UTF_8));
        StudentPO.Student student = StudentPO.Student.newBuilder()
                .setId(4)
                .setName("逝水无痕")
                .build();
       ctx.writeAndFlush(student);
    }
    //当通道有读取事件时触发
    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
        ByteBuf buf  = (ByteBuf) msg;
        System.out.println("服务器回复的消息: "+buf.toString(CharsetUtil.UTF_8));
        System.out.println("服务器的地址: "+ctx.channel().remoteAddress());
    }
}
